CH271702A
Expired / Lapsed
CH
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Method for the formation of external threads and device for its implementation.
Assignee: Koull Alfred
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Filing: 1948-03-20
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Granted: —
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Expires: 1968-03-20
Abstract
No abstract record available.
Inventors
- 👤 Koull Alfred
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-10-29 07:20
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/20; B21C37/207; B21H; B21H3/00; B21H3/02; B21H3/04; B21H3/042
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References Cited (Backward Citations)
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